JPS5830528Y2 - Device to prevent water from flowing when airpot falls over - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing water from flowing when an air pot falls over.

The air pot is equipped with a bellows pump in the head for pumping air into the inner container, and this bellows pump is operated,
The pumped water in the inner container is discharged through a lifting pipe that hangs down inside the inner container, an inner stopper with a liquid flow path, and a discharge pipe whose tip protrudes outside.In this type of air pot, this lifting pipe is Since the discharge pipe is connected through the liquid flow path inside the stopper, if the pot falls over, the liquid inside the inner container will flow out from the mouth of the discharge pipe, making the place where the pot is placed wet. If the liquid inside the inner container is high temperature, it may cause burns.

The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a water-flow prevention device for a pneumatic pot when it falls over, which can reliably prevent the liquid from flowing out of the inner container even when the pot falls over.

Embodiments of the present invention will be described below with reference to the drawings.

Air pot 1 has a bellows pump 3 built into the top lid 2.
When pressed through the pusher 4, pressurized air is blown into the inner container 7 through the airflow passage 6 in the inner stopper 5, and this pressurized air causes the liquid in the inner container 7 to pass through the pumping pipe 8. The liquid is discharged from the outlet of the discharge pipe 10 to the outside of the pot body 11 through the liquid flow path 9 in the inner stopper 5.

The inner stopper 5 has an air flow passage 6 that supplies pressurized air from a bellows pump 3 built into the upper lid 2 into the inner container 7, and a liquid flow passage 9 that communicates with the pumping pipe 8 and the discharge pipe 10. an upper plate 12 provided with the upper plate 12; a lower plate 13 attached to the lower end of the upper plate;
A valve body 15 that can freely open and close the discharge pipe side opening 14 of the liquid flow passage 9 in the upper plate, and a valve body 15 that is pushed upward in the liquid flow passage so that the valve body can normally close the discharge pipe side opening. The valve body is composed of a spring 16 that presses the valve body against the pressing force of the spring, and a bellows 17 inside the inner plug that presses down the valve body against the pressing force of the spring.

On the upper surface of the upper plate 12 of the inner plug, there is a first air port 18 that communicates between the inside of the bellows pump and the air flow passage 6, and a second air port that communicates between the inside of the bellows pump and the bellows 17 in the inner plug inside the liquid flow passage 9. A port 19 is bored.

As shown in FIG. 2, the valve body 15 is formed in an abbreviated shape in longitudinal section, and includes a vertical portion 20 that freely slides up and down on the discharge pipe side opening 14 of the liquid flow passage 9, and The lower end of the horizontal part 21 is provided with a horizontal part 21 that can freely slide up and down within the liquid flow passage.

A large-diameter through hole 22 is bored in this horizontal portion 21 so that the liquid flow path 9 is not sufficiently divided by this horizontal portion.

As shown in FIG. 2, the spring 16 has one end attached to the inner stopper lower plate 1.
3, and the other end is attached to the lower surface of the horizontal part 21 of the valve body, and the valve body 15 is pressed so that the vertical part 20 of the valve body 15 always closes the discharge pipe side opening 14 of the liquid flow passage. I'm raising it.

As shown in FIG. 2, the inner bellows 17 in the inner plug contacts the horizontal part 21 of the valve body 15 with its lower end closed and communicates with the second air port 19 with its upper end open, and the outer periphery of the upper end is connected to the second air port 19. It fits around the inside of the mouth.

The lower plate of the inner stopper is provided with a plurality of exhaust ports 23 that communicate the airflow passage 16 with the inside of the inner container.

When the pushing body 14 of the upper lid 2 is pressed, the pressurized air in the bellows pump 3 is supplied from the second air port 19 of the upper plate 12 into the bellows 17 inside the inner plug, expanding the bellows inside the inner plug and pushing the spring 16. The valve body 15 is pushed down below the liquid flow passage 9 against the lifting force, and the vertical portion 20 of the pressed valve body 15 is separated from the discharge pipe side opening 14 of the liquid flow passage.
The lift pipe 8, the liquid flow passage 9, and the discharge pipe 10 are communicated, and at the same time, the liquid level in the inner container 17 is pushed through the exhaust port 13 by the pressurized air that enters the air flow passage from the first air port 18. lower,
The liquid in the inner container is guided from the lift pipe 8 to the discharge pipe 10 via the liquid flow path 9.

When the user releases his or her finger from the pusher 4 to stop pressing, the pressurized air in the bellows 17 inside the inner stopper is supplied back into the bellows pump 3 of the upper lid 2 due to the upward force of the spring 16, and the valve body 15 is raised, and the vertical portion 20 of this valve body closes the discharge pipe side opening 14 of the liquid flow passage.

As described above, in the present invention, there is a vertical part in the liquid flow passage in the inner stopper that allows the discharge pipe side opening in the liquid flow passage to be opened and closed, and a vertical part that prevents the liquid flow passage from being divided into upper and lower parts. A valve body with an abbreviated vertical cross section and a horizontal part with a large-diameter through hole is provided, and a spring that constantly pushes up the valve body is on the bottom surface of the valve body, and a bellows pump inside the upper lid. Since there is provided a bellows inside the inner stopper which communicates with the pot and presses down the valve body by the pressing force of the bellows pump against the pressing force of the spring, it is possible to completely prevent water from flowing when the pot is tipped over.

That is, when the pot is used, the downward force of the bellows inside the inner stopper pushes down the valve body against the upward force of the spring inside the inner stopper, thereby communicating the lift pipe, the liquid flow path inside the inner stopper, and the discharge pipe. The liquid in the inner container is discharged from the discharge pipe, but when not in use,
The valve body is always pushed up by the spring inside the inner stopper, and the vertical portion of the valve body closes the discharge pipe side opening in the liquid flow passage.

Therefore, even when the pot falls over, the valve body does not move at all in the liquid flow passage due to the upward force of the spring, completely closing the opening of the liquid flow passage on the discharge pipe side, and no liquid flows out.

[Brief explanation of the drawing]

FIG. 1 is a partial vertical cross-sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged vertical cross-sectional view showing essential parts of the present invention. 1...Air pot, 2...Top lid, 3.
...Bellows pump, 5 ...Inner stopper, 7.
...Inner container, 8... Lifting pipe, 9...
...Liquid flow path, 10...Discharge pipe, 14...
...Discharge pipe side opening, 15... Valve body, 16...
... Spring, 17 ... Bellows inside the inner stopper.

Claims (1)

[Scope of utility model registration request] In the air pot, the liquid in the inner container is discharged to the outside from the discharge pipe through the lift pipe and the liquid flow passage in the inner stopper under the pressure of the bellows pump built in the upper lid. A valve body is provided that slides up and down in the liquid flow passage to open and close the discharge pipe side opening in the liquid flow passage, and a spring is placed in tension to push this valve body upward into the liquid flow passage, and the upper opening is closed with a bellows. A bellows inside the inner stopper is provided, which communicates with the inside of the pump, closes the lower part, and engages with the valve body, and when not in use, the valve body closes the opening on the discharge pipe side of the liquid flow passage, and only when the bellows pump is pressed. Pressurized air from the bellows inside the inner plug pushes down the valve body against the upward force of the spring, opens the discharge pipe side opening of the liquid flow passage, and connects the lift pipe, the liquid flow passage inside the inner plug, and the discharge pipe. A device that prevents water from flowing when an air pot falls over.